BIND 9.10.0-P2 prefetch problem

Tony Finch dot at dotat.at
Tue Jul 15 17:07:47 UTC 2014


Tracy, Tedd C.   Contractor <Tedd.C.Tracy at ssa.gov> wrote:
>
> ;; ANSWER SECTION:
> www.securityplusfcuhb.org. 86399 IN     CNAME   securityplusfcuhb.flb.intuit.com.
> securityplusfcuhb.flb.intuit.com. 30 IN CNAME   03845.olb.prd1.flb.digitalinsight.com.
> 03845.olb.prd1.flb.digitalinsight.com. 30 IN A  199.102.151.76

> As long as no queries are performed at a time that would trigger a
> prefetch, everything is fine. If a query is performed at a time that
> does trigger a prefetch, all subsequent queries return NXDOMAIN.

The problem is one of the name servers responds incorrectly to CNAME
queries:

; <<>> DiG <<>> cname securityplusfcuhb.flb.intuit.com. @flbflb-gtm-lvdc.intuit.com.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 7806
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;securityplusfcuhb.flb.intuit.com. IN   CNAME

;; AUTHORITY SECTION:
flb.intuit.com.         600     IN      SOA     flbflb-gtm-qydc.intuit.com. hostmaster.flb.intuit.com. 2014022110 10800 3600 604800 86400

;; Query time: 150 msec
;; SERVER: 63.172.232.28#53(63.172.232.28)
;; WHEN: Tue Jul 15 18:06:45 BST 2014
;; MSG SIZE  rcvd: 124


Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Viking, North Utsire, South Utsire, Northeast Forties: Westerly 5 or 6,
backing southerly 4 or 5 later. Slight or moderate. Showers, rain later. Good,
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